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Title: | Microwave assisted versus conventional pyrolysis of MDF: characterization of the biochars by FT-IR and solid-state 13C-NMR | Authors: | HAELDERMANS, Tom ADRIAENSENS, Peter Claesen, Joyce MAGGEN, Jens CARLEER, Robert YPERMAN, Jan SAMYN, Pieter VANDAMME, Dries CUYPERS, Ann VANREPPELEN, Kenny SCHREURS, Sonja |
Issue Date: | 2018 | Source: | Young Belgian Magnetic Resonance Scientist 2018, Spa, 6-7/12/2018 | Abstract: | Biochars produced by microwave assisted pyrolysis and conventional pyrolysis from Medium Density Fibreboard were characterized by FT-IR and 13C solid-state NMR spectroscopy. The influence of different pyrolysis parameters, including microwave power, pyrolysis temperature and presence/absence of microwave absorbers is evaluated in relation to the biochar yield and properties, Whereas FT-IR and NMR are both indispensable tools to identify the functional groups of the biochars, solid-state 13C-NMR spectroscopy further allows to obtain quantitative data as a function of the conversion degree, and especially regarding the aromaticity. ln general microwave assisted pyrolysis yields biochars with a higher degree of aromaticity, and therefore improved stability, at lower temperatures as compared to conventional pyrolysis. lt is demonstrated that pyrolysis is a viable option to transform MDF into a value added product at the end of its lifetime. | Keywords: | carbonization; MDF; biochar; microwave assisted pyrolysis; microwave absorber | Document URI: | http://hdl.handle.net/1942/27595 | Category: | C2 | Type: | Conference Material |
Appears in Collections: | Research publications |
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abstract-YBMRS.docx Restricted Access | Conference material | 15.72 kB | Microsoft Word | View/Open Request a copy |
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